Monatshefte fur Chemie p. 43 - 46 (1991)
Update date:2022-08-04
Topics:
Hassan, Ahmed M. M.
Badawey, El-Sayed A. M.
The syntheses of 1,3,4-oxadiazolo<3,2-a>-s-triazine-5,7(6H)-diones 4 through the condensation of 2-amino-5-aryl-1,3,4-oxadiazoles 1 with ethoxycarbonyl isocyanate 2 is described.Methylation of 4b with trimethyl phosphate yielded the N-methyl derivative 5.
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(1991)
